Date: May 19, 2013 5:46 AM
Author: spamslayer19@gmail.com
Subject: Re: skipping some i, j , ... values in Table
Here's another solution, slightly faster for large numbers:

Rest@Flatten@

Reap@Do[If[! PrimeQ@(i + j), Sow@f[i, j]], {i, 1, 10}, {j, 1, 10}]

On Saturday, May 18, 2013 1:38:24 AM UTC-5, Andre Hautot wrote:

> Hi,

>

> Suppose I need a list, Flatten[Table[something[i,j],{i,10},{j,10}]],

>

> where some combinations of indices i and j are voluntarily missing under

>

> a known condition (for example, stupid I know, when i+j is a prime).

>

> How can I do that ?

>

> Thanks in advance,

>

> ahautot